Electronic device including display

ABSTRACT

An electronic device is provided. The electronic device includes a hinge housing extending in a direction of a rotational axis, a first housing connected to one side of the hinge housing in a direction perpendicular to the rotational axis to rotate about the rotational axis relative to the hinge housing, a second housing connected to an opposite side of the hinge housing in a direction perpendicular to the rotational axis to rotate about the rotational axis relative to the hinge housing, and a flexible display including a bending area at least partially disposed in the hinge housing and formed to be a flat surface or a curved surface, a first area extending from the bending area in one direction perpendicular to the rotational axis, and a second area extending from the bending area in an opposite direction perpendicular to the rotational axis.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is based on and claims priority under 35 U.S.C. §119(a) of a Korean patent application number 10-2019-0052458, filed onMay 3, 2019, in the Korean Intellectual Property Office, the disclosureof which is incorporated by reference herein in its entirety.

BACKGROUND 1. Field

The disclosure relates to an electronic device including a display.

2. Description of Related Art

A foldable electronic device may include a flexible display including abending area, a portion of which is able to be deformed into a curvedsurface or a flat surface. The foldable electronic device may include aflat state for providing a large screen to a user and a folded state forproviding mobility to the user.

The flexible display may include a plurality of layers. In the foldedstate, shear stress depending on a difference in radius of curvaturebetween the layers may be formed in the bending area of the flexibledisplay. As a result, the bending area may be vulnerable to externalshock, compared to other areas.

The above information is presented as background information only toassist with an understanding of the disclosure. No determination hasbeen made, and no assertion is made, as to whether any of the abovemight be applicable as prior art with regard to the disclosure.

SUMMARY

The foldable electronic device may include the flexible display and ahousing structure in which the flexible display is mounted. In the casewhere external shock (e.g., a drop impact) is applied to the foldableelectronic device, shear stress may be generated between the housingstructure and the flexible display. The shear stress may deteriorate thesurface quality of the flexible display. To relieve the shear stress,the flexible display may be attached to the housing structure so as tobe movable in a certain range.

In the case where external shock (e.g., a drop impact) is applied to thefoldable electronic device, the flexible display coupled to the housingstructure so as to be movable may collide with an internal structure ofthe housing structure. The housing structure formed of a rigid materialmay damage the flexible display. In particular, the bending arearelatively vulnerable to shock may be damaged.

In accordance with an aspect of the disclosure, to address at least theabove-mentioned problems and/or disadvantages and to is provided. Theabove-mentioned problems include at least the advantages describedbelow. Accordingly, an aspect of the disclosure is to provide anelectronic device for preventing a flexible display from colliding witha rigid structure in a housing structure and absorbing external shock.

Additional aspects will be set forth in part in the description whichfollows and, in part, will be apparent from the description, or may belearned by practice of the presented embodiments.

In accordance with an aspect of the disclosure, an electronic device isprovided. The electronic device includes a hinge housing extending in adirection of a rotational axis, a first housing connected to one side ofthe hinge housing in a direction perpendicular to the rotational axis torotate about the rotational axis relative to the hinge housing, a secondhousing connected to an opposite side of the hinge housing in adirection perpendicular to the rotational axis to rotate about therotational axis relative to the hinge housing, and a flexible displayincluding a bending area at least partially disposed in the hingehousing and formed to be a flat surface or a curved surface, a firstarea extending from the bending area in one direction perpendicular tothe rotational axis, and a second area extending from the bending areain an opposite direction perpendicular to the rotational axis. The hingehousing includes protruding portions formed on opposite end portions ofthe hinge housing in the direction of the rotational axis and adjacentto a periphery of the flexible display and cushioning members disposedbetween the protruding portions and the periphery of the flexibledisplay and spaced apart from the periphery of the flexible display by acertain gap.

In accordance with another aspect of the disclosure, an electronicdevice is provided. The electronic device includes a housing structureincluding a first housing, a second housing, and a hinge housingdisposed between the first housing and the second housing, in which thefirst housing and the second housing are configured to be folded towardeach other about a folding axis aligned with the hinge housing, aflexible display including a bending area at least partially disposed inthe hinge housing and formed to be a flat surface or a curved surface, afirst area that extends from the bending area and that is disposed inthe first housing, and a second area that extends from the bending areaand that is disposed in the second housing, and a shock-relievingstructure that absorbs shock applied to the flexible display. The hingehousing includes a sidewall, at least a portion of which faces adirection of the folding axis. The shock-relieving structure includes ashock-absorbing member formed between the sidewall and a periphery ofthe flexible display.

In accordance with another aspect of the disclosure, an electronicdevice is provided. The electronic device includes a flexible displayincluding a first area formed to be a flat surface, a second area formedto be a flat surface, and a bending area formed between the first areaand the second area and formed to be a flat surface or a curved surface,a housing structure that surrounds a periphery of the flexible displayand that includes a frame structure spaced apart from the periphery by afirst gap, and a shock-relieving structure including a shock-absorbingmember formed between the frame structure and the periphery of theflexible display and spaced apart from the periphery by a second gapsmaller than the first gap.

Other aspects, advantages, and salient features of the disclosure willbecome apparent to those skilled in the art from the following detaileddescription, which, taken in conjunction with the annexed drawings,discloses various embodiments of the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features, and advantages of certainembodiments of the disclosure will be more apparent from the followingdescription taken in conjunction with the accompanying drawings, inwhich:

FIG. 1 is a view illustrating a flat state of an electronic deviceaccording to an embodiment of the disclosure;

FIG. 2 is a view illustrating a folded state of the electronic device ofFIG. 1 according to an embodiment of the disclosure;

FIG. 3 is an exploded perspective view of the electronic deviceaccording to an embodiment of the disclosure;

FIGS. 4A and 4B are views illustrating a folded state and a flat stateof the electronic device according to various embodiments of thedisclosure;

FIGS. 5A and 5B are sectional views illustrating a folded state and aflat state of an electronic device according to various embodiments ofthe disclosure;

FIG. 6 is a view illustrating a hinge housing of the electronic deviceaccording to an embodiment of the disclosure;

FIGS. 7A and 7B are views illustrating a cushioning member and aprotruding portion of the electronic device according to variousembodiments of the disclosure;

FIG. 8 is a view illustrating a flexible display and the hinge housingof the electronic device according to an embodiment of the disclosure;

FIGS. 9A, 9B, and 9C are views illustrating the hinge housing and theflexible display of the electronic device according to variousembodiments of the disclosure;

FIGS. 10A, 10B, and 10C are views illustrating the flexible display andthe cushioning member in the case where the electronic device accordingto various embodiments of the disclosure;

FIG. 11 is a view illustrating a drop impact applied to the flexibledisplay of the electronic device according to an embodiment of thedisclosure;

FIGS. 12A, 12B, and 12C are views illustrating assembly of thecushioning member and the hinge housing of the electronic deviceaccording to various embodiments of the disclosure;

FIGS. 13A, 13B, and 13C are views illustrating a cushioning member and ahinge housing of an electronic device according to various embodimentsof the disclosure;

FIG. 14 is a view illustrating the cushioning member and the hingehousing of the electronic device according to an embodiment of thedisclosure;

FIGS. 15A, 15B, and 15C are views illustrating shock-relievingstructures of foldable electronic devices according to variousembodiments of the disclosure; and

FIG. 16 is a view illustrating a cushioning member and a hinge housingof an electronic device according to an embodiment of the disclosure.

Throughout the drawings, it should be noted that like reference numeralsare used to depict the same or similar elements, features, andstructures.

DETAILED DESCRIPTION

The following description with reference to the accompanying drawingsprovided to assist in a comprehensive understanding of variousembodiments of the disclosure as defined by the claims and theirequivalents. It includes various specific details to assist in thatunderstanding, but these are to be regarded as merely exemplary.Accordingly, those of ordinary skill in the art will recognize thatvarious changes and modifications, of the various embodiments describedherein can be made without departing from the scope and spirit of thedisclosure. In addition, descriptions of well-known functions andconstructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are notlimited to the bibliographical meanings, but are merely used by theinventor to enable a clear and consistent understanding of thedisclosure. Accordingly, it should be apparent to those skilled in theart that the following description of various embodiments of thedisclosure is provided for illustration purposes only and not for thepurpose of limiting the disclosure as defined by the appended claims andtheir equivalents.

It is to be understood that the singular forms “a,” “an,” and “the”include plural referents unless the context clearly dictates otherwise.Thus, for example, reference to “a component surface” includes referenceto one or more of such surfaces.

FIG. 1 is a view illustrating a flat state of an electronic deviceaccording to an embodiment of the disclosure.

FIG. 2 is a view illustrating a folded state of the electronic device ofFIG. 1 according to an embodiment of the disclosure.

Referring to FIG. 1, the electronic device 100 may include a pair ofhousing structures 110 and 120 (e.g., foldable housing structures) thatare coupled to pivot around a hinge structure (e.g., a hinge structure164 of FIG. 3) so as to be folded relative to each other, a hinge cover(e.g., a hinge cover 165 of FIG. 5) that covers foldable portions of thepair of housing structures 110 and 120, and a display 130 (e.g., aflexible display or a foldable display) that is disposed in a spaceformed by the pair of housing structures 110 and 120. In thisdisclosure, a surface on which the display 130 is disposed may bedefined as a front surface of the electronic device 100, and an oppositesurface to the front surface may be defined as a rear surface of theelectronic device 100. Furthermore, surfaces surrounding a space betweenthe front surface and the rear surface may be defined as side surfacesof the electronic device 100.

The pair of housing structures 110 and 120 may include the first housingstructure 110 including a sensor area 131 d, the second housingstructure 120, a first back cover 140, and a second back cover 150. Thepair of housing structures 110 and 120 of the electronic device 100 arenot limited to the form and coupling illustrated in FIGS. 1 and 2 andmay be implemented by a combination and/or coupling of other shapes orparts. For example, the first housing structure 110 and the first backcover 140 may be integrated with each other, and the second housingstructure 120 and the second back cover 150 may be integrated with eachother.

The first housing structure 110 and the second housing structure 120 maybe disposed on opposite sides of a folding axis (an axis F) and may haveshapes that are entirely symmetric to each other with respect to thefolding axis (the axis F). The angle or distance that the first housingstructure 110 and the second housing structure 120 form may varydepending on whether the electronic device 100 is in a flat state or aclosing state, a folded state, or an intermediate state. Unlike thesecond housing structure 120, the first housing structure 110 mayadditionally include the sensor area 131 d in which various sensors aredisposed, but may have a mutually symmetrical shape in the other area.The sensor area 131 d may be additionally disposed in, or replaced with,at least a partial area of the second housing structure 120.

The first housing structure 110 may be connected to the hinge structure(e.g., the hinge structure 164 of FIG. 3) in a flat state of theelectronic device 100 and may include a first surface 111 disposed toface toward the front surface of the electronic device 100, a secondsurface 112 facing away from the first surface 111, and a first sidemember 113 surrounding at least a portion of a space between the firstsurface 111 and the second surface 112. The first side member 113 mayinclude a first side surface 113 a disposed parallel with the foldingaxis (the axis F), a second side surface 113 b extending from one end ofthe first side surface 113 a in a direction perpendicular to the foldingaxis, and a third side surface 113 c extending from an opposite end ofthe first side surface 113 a in the direction perpendicular to thefolding axis (the axis F).

The second housing structure 120 may be connected to the hinge structure(e.g., the hinge structure 164 of FIG. 3) in the flat state of theelectronic device 100 and may include a third surface 121 disposed toface toward the front surface of the electronic device 100, a fourthsurface 122 facing away from the third surface 121, and a second sidemember 123 surrounding at least a portion of a space between the thirdsurface 121 and the fourth surface 122. The second side member 123 mayinclude a fourth side surface 123 a disposed parallel with the foldingaxis (the axis F), a fifth side surface 123 b extending from one end ofthe fourth side surface 123 a in a direction perpendicular to thefolding axis (the axis F), and a sixth side surface 123 c extending froman opposite end of the fourth side surface 123 a in the directionperpendicular to the folding axis (the axis F). In an embodiment, thethird surface 121 may face the first surface 111 in a folded state.

The electronic device 100 may include a recess 101 formed to receive thedisplay 130 through a structural shape coupling of the first housingstructure 110 and the second housing structure 120. The recess 101 mayhave substantially the same size as the display 130. Due to the sensorarea 131 d, the recess 101 may have two or more different widths in thedirection perpendicular to the folding axis (the axis F). For example,the recess 101 may have a first width w1 between a first portion 120 aof the second housing structure 120 that is parallel to the folding axis(the axis F) and a first portion 110 a of the first housing structure110 that is formed on the periphery of the sensor area 131 d and asecond width w2 formed by a second portion 120 b of the second housingstructure 120 and a second portion 110 b of the first housing structure110 that does not correspond to the sensor area 131 d and that isparallel to the folding axis (the axis F). In this case, the secondwidth w2 may be formed to be greater than the first width w1. Forexample, the recess 101 may be formed to have the first width W1 betweenthe first portion 110 a of the first housing structure 110 and the firstportion 120 a of the second housing structure 120 that have mutuallyasymmetric shapes and the second width W2 between the second portion 110b of the first housing structure 110 and the second portion 120 b of thesecond housing structure 120 that have mutually symmetric shapes.

The first portion 110 a and the second portion 110 b of the firsthousing structure 110 may be formed to have different distances from thefolding axis (the axis F). The width of the recess 101 is not limited tothe illustrated example. The recess 101 may have two or more differentwidths due to the form of the sensor area 131 d or theasymmetrically-shaped portions of the first housing structure 110 andthe second housing structure 120.

At least a portion of the first housing structure 110 and at least aportion of the second housing structure 120 may be formed of a metallicmaterial or a non-metallic material that has a stiffness selected tosupport the display 130.

The sensor area 131 d may be formed to have a certain area adjacent toone corner of the first housing structure 110. However, the arrangement,shape, or size of the sensor area 131 d is not limited to theillustrated example. For example, the sensor area 131 d may be providedin another corner of the first housing structure 110 or in any areabetween an upper corner and a lower corner of the first housingstructure 110. In another embodiment, the sensor area 131 d may bedisposed in at least a partial area of the second housing structure 120.The sensor area 131 d may be disposed to extend to the first housingstructure 110 and the second housing structure 120. The electronicdevice 100 may include parts that perform various functions and that aredisposed to be exposed on the front surface of the electronic device 100though the sensor area 131 d or through one or more openings formed inthe sensor area 131 d. In various embodiments, the parts may include,for example, at least one of a front camera device, a receiver, aproximity sensor, an illuminance sensor, an iris recognition sensor, anultrasonic sensor, or an indicator.

The first back cover 140 may be disposed on the second surface 112 ofthe first housing structure 110 and may have a substantially rectangularperiphery. At least a portion of the periphery may be surrounded by thefirst housing structure 110. Similarly, the second back cover 150 may bedisposed on the fourth surface 122 of the second housing structure 120,and at least a portion of the periphery of the second back cover 150 maybe surrounded by the second housing structure 120.

In the illustrated embodiment, the first back cover 140 and the secondback cover 150 may have substantially symmetrical shapes with respect tothe folding axis (the axis F). In other embodiments, the first backcover 140 and the second back cover 150 may include various differentshapes. The first back cover 140 may be integrated with the firsthousing structure 110, and the second back cover 150 may be integratedwith the second housing structure 120.

The first back cover 140, the second back cover 150, the first housingstructure 110, and the second housing structure 120 may provide, througha mutually coupled structure, a space in which various parts (e.g., aprinted circuit board, an antenna module, a sensor module, or a battery)of the electronic device 100 are disposed. One or more parts may bedisposed, or visually exposed, on the rear surface of the electronicdevice 100. For example, one or more parts or sensors may be visuallyexposed through a first rear area 141 of the first back cover 140. Thesensors may include a proximity sensor, a rear camera device, and/or aflash. At least a portion of a sub-display 152 may be visually exposedthrough a second rear area 151 of the second back cover 150. Theelectronic device 100 may include a speaker module 153 disposed throughat least a partial area of the second back cover 150.

The display 130 may be disposed on the space formed by the pair ofhousing structures 110 and 120. For example, the display 130 may bemounted in the recess 101 formed by the pair of housing structures 110and 120 and may be disposed to occupy substantially the entire frontsurface of the electronic device 100. Accordingly, the front surface ofthe electronic device 100 may include the display 130, a partial area(e.g., a peripheral area) of the first housing structure 110 that isadjacent to the display 130, and a partial area (e.g., a peripheralarea) of the second housing structure 120 that is adjacent to thedisplay 130. The rear surface of the electronic device 100 may includethe first back cover 140, a partial area (e.g., a peripheral area) ofthe first housing structure 110 that is adjacent to the first back cover140, the second back cover 150, and a partial area (e.g., a peripheralarea) of the second housing structure 120 that is adjacent to the secondback cover 150.

The display 130 may refer to a display, at least a partial area of whichis able to be deformed into a flat surface or a curved surface. In anembodiment, the display 130 may include a folding area 131 c, a firstarea 131 a disposed on one side of the folding area 131 c (e.g., theright side of the folding area 131 c), and a second area 131 b disposedon an opposite side of the folding area 131 c (e.g., the left side ofthe folding area 131 c). For example, the first area 131 a may bedisposed on the first surface 111 of the first housing structure 110,and the second area 131 b may be disposed on the third surface 121 ofthe second housing structure 120. In an embodiment, the division of thedisplay 130 into the areas is illustrative, and the display 130 may bedivided into a plurality of areas (e.g., four or more areas, or twoareas) depending on the structure or function of the display 130. Forexample, in the embodiment illustrated in FIG. 1, the areas of thedisplay 130 may be divided from each other by the folding area 131 c orthe folding axis (the axis F) that extends parallel to the y axis.However, in another embodiment, the display 130 may be divided intoareas with respect to a different folding area (e.g., a folding areaparallel to the x axis) or a different folding axis (e.g., a foldingaxis parallel to the x axis). The above-described division of thedisplay 130 into the areas may be merely a physical division by the pairof housing structures 110 and 120 and the hinge structure (e.g., thehinge structure 164 of FIG. 3), and one full screen may be displayed onthe display 130 substantially through the pair of housing structures 110and 120 and the hinge structure (e.g., the hinge structure 164 of FIG.3).

The first area 131 a and the second area 131 b may have shapes that areentirely symmetric to each other with respect to the folding area 131 c.However, unlike the second area 131 b, the first area 131 a may includea notch area (e.g., a notch area 133 of FIG. 3) that is cut depending onthe presence of the sensor area 131 d, but in the other area, the firstarea 131 a may have a shape that is symmetric to the second area 131 b.For example, the first area 131 a and the second area 131 b may includea portion having a symmetrical shape and a portion having anasymmetrical shape.

Referring to FIG. 2, the hinge cover 165 may be disposed between thefirst housing structure 110 and the second housing structure 120 and maybe configured to hide an internal part (e.g., the hinge structure 164 ofFIG. 3). In an embodiment, the hinge cover 165 may be hidden by aportion of the first housing structure 110 and a portion of the secondhousing structure 120, or may be exposed to the outside, depending on anoperational state (a flat state or a folded state) of the electronicdevice 100.

For example, in the case where the electronic device 100 is in a flatstate as illustrated in FIG. 1, the hinge cover 165 may not be exposedby being hidden by the first housing structure 110 and the secondhousing structure 120. In another example, in the case where theelectronic device 100 is in a folded state (e.g., a fully folded state)as illustrated in FIG. 2, the hinge cover 165 may be exposed to theoutside from between the first housing structure 110 and the secondhousing structure 120. In another example, in the case where theelectronic device 100 is in an intermediate state in which the firsthousing structure 110 and the second housing structure 120 are foldedwith a certain angle, the hinge cover 165 may be at least partiallyexposed to the outside of the electronic device 100 from between thefirst housing structure 110 and the second housing structure 120. Inthis case, the exposed area may be smaller than that in the fully foldedstate. In an embodiment, the hinge cover 165 may include a curvedsurface.

Hereinafter, operations of the first housing structure 110 and thesecond housing structure 120 and the areas of the display 130 dependingon an operational state (e.g., a flat state or a folded state) of theelectronic device 100 will be described.

In the case where the electronic device 100 is in a flat state (e.g.,the state of FIG. 1), the first housing structure 110 and the secondhousing structure 120 may form an angle of 180 degrees, and the firstarea 131 a and the second area 131 b of the display 130 may be disposedto face the same direction. Furthermore, the folding area 131 c,together with the first area 131 a and the second area 131 b, may formthe same plane. In another embodiment of the disclosure, in the casewhere the electronic device 100 is in the flat state, the first housingstructure 110 and the second housing structure 120 may rotate relativeto each other through an angle of 360 degrees and may be oppositelyfolded such that the second surface 112 and the fourth surface 122 faceeach other.

In the case where the electronic device 100 is in a folded state (e.g.,the state of FIG. 2), the first housing structure 110 and the secondhousing structure 120 may be disposed to face each other. The first area131 a and the second area 131 b of the display 130 may face each otherwhile forming a narrow angle (e.g., between 0 degrees and 10 degrees).At least a portion of the folding area 131 c may be formed to be acurved surface having a certain curvature.

In the case where the electronic device 100 is in an intermediate state,the first housing structure 110 and the second housing structure 120 maybe disposed at a certain angle. The first area 131 a and the second area131 b of the display 130 may form an angle that is larger than that inthe folded state and is smaller than that in the flat state. At least aportion of the folding area 131 c may be formed to be a curved surfacehaving a certain curvature, and in this case, the curvature may besmaller than that in the folded state.

FIG. 3 is an exploded perspective view of the electronic device 100according to an embodiment of the disclosure.

Referring to FIG. 3, in an embodiment, the electronic device 100 mayinclude the display 130, a support member assembly 160, at least oneprinted circuit board 170, the first housing structure 110, the secondhousing structure 120, the first back cover 140, and the second backcover 150. In this disclosure, the display 130 may be referred to as thedisplay module or the display assembly.

The display 130 may include a display panel 131 (e.g., a flexibledisplay panel) and one or more plates 132 or layers on which the displaypanel 131 is mounted. In an embodiment, the plates 132 may be disposedbetween the display panel 131 and the support member assembly 160. Thedisplay panel 131 may be disposed on at least a portion of one surfaceof the plates 132. The plates 132 may include a first plate 1321 and asecond plate 1322 divided from each other with respect to the hingestructure 164. The plates 132 may include at least one member that isunable to be folded together when the first housing structure 110 andthe second housing structure 120 are rotated into a folded and/or flatstate with respect to the hinge structure 164. The plates 132 mayinclude at least one subsidiary material layer (e.g., graphite member)and/or conductive plate (e.g., Cu sheet) disposed on a rear surface ofthe display panel 131. The plates 132 may be formed in a shapecorresponding to the display panel 131. For example, a partial area ofthe first plate 1321 may be formed in a shape corresponding to the notcharea 133 of the display panel 131.

The support member assembly 160 may include a first support member 161,a second support member 162, the hinge structure 164 disposed betweenthe first support member 161 and the second support member 162, thehinge cover 165 covering the hinge structure 164 when the hingestructure 164 is viewed from the outside, and at least one wiring member163 (e.g., a flexible printed circuit board (FPCB)) across the firstsupport member 161 and the second support member 162.

The support member assembly 160 may be disposed between the plates 132and the at least one printed circuit board 170. For example, the firstsupport member 161 may be disposed between the first area 131 a of thedisplay 130 and a first printed circuit board 171. The second supportmember 162 may be disposed between the second area 131 b of the display130 and a second printed circuit board 172.

The wiring members 163 and at least a portion of the hinge structure 164may be disposed inside the support member assembly 160. The wiringmember 163 may be disposed in a direction (e.g., the x-axis direction)across the first support member 161 and the second support member 162.The wiring members 163 may be disposed in a direction (e.g., the x-axisdirection) perpendicular to the folding axis of the folding area 131 c(e.g., the y-axis or the folding axis F of FIG. 1).

The at least one printed circuit board 170, as mentioned above, mayinclude the first printed circuit board 171 disposed on one side of thefirst support member 161 and the second printed circuit board 172disposed on one side of the second support member 162. The first printedcircuit board 171 and the second printed circuit board 172 may bedisposed in a space that is formed by the support member assembly 160,the first housing structure 110, the second housing structure 120, thefirst back cover 140, and the second back cover 150. Parts forimplementing various functions of the electronic device 100 may bemounted on the first printed circuit board 171 and the second printedcircuit board 172.

The first housing structure 110 may contain the first printed circuitboard 171, a battery 119, at least one sensor module 181, or at leastone camera module 182 that is disposed in a space formed through thefirst support member 161. The first housing structure 110 may include awindow glass 183 disposed to protect the at least one sensor module 181and the at least one camera module 182 in a position corresponding tothe notch area 133 of the display 130. The second housing structure 120may contain the second printed circuit board 172 disposed in a spaceformed through the second support member 162. The first housingstructure 110 and the first support member 161 may be integrated witheach other. The second housing structure 120 and the second supportmember 162 may also be integrated with each other.

The first housing structure 110 may include a first rotation supportsurface 114, and the second housing structure 120 may include a secondrotation support surface 124 corresponding to the first rotation supportsurface 114. The first rotation support surface 114 and the secondrotation support surface 124 may include a curved surface correspondingto a curved surface included in the hinge cover 165.

In the case where the electronic device 100 is in a flat state (e.g.,the state of FIG. 1), the first rotation support surface 114 and thesecond rotation support surface 124 may cover the hinge cover 165 so asnot to expose the hinge cover 165 through the rear surface of theelectronic device 100 or so as to minimally expose the hinge cover 165.In another embodiment of the disclosure, in the case where theelectronic device 100 is in a folded state (e.g., the state of FIG. 2),the first rotation support surface 114 and the second rotation supportsurface 124 may rotate along the curved surfaces included in the hingecover 165 to maximally expose the hinge cover 165 through the rearsurface of the electronic device 100.

FIGS. 4A and 4B are views illustrating a folded state and a flat stateof the electronic device according to various embodiments of thedisclosure.

Referring to FIGS. 4A and 4B, the electronic device 100 disclosed hereinmay include a folded state (FIG. 4A) and a flat state (FIG. 4B). Thefolded state (FIG. 4A) and the flat state (FIG. 4B) may be defineddepending on whether the hinge cover 165 forms the exterior of theelectronic device 100, whether a folding area (e.g., the folding area131 c of FIG. 3) of a flexible display (e.g., the flexible display 130of FIG. 3) is bent, or the positional relationship between the firsthousing structure 110 and the second housing structure 120.

In the illustrated embodiment, the folded state (e.g., FIG. 4A) mayinclude a state in which the hinge cover 165 of the electronic device100 is exposed from between the first housing structure 110 and thesecond housing structure 120. In this case, the hinge cover 165 may forma portion of the exterior (e.g., the rear surface) of the electronicdevice 100.

In the illustrated embodiment, the flat state (FIG. 4B) may include astate in which the hinge cover 165 of the electronic device 100 iscompletely hidden by the first housing structure 110 and the secondhousing structure 120. In this case, the hinge cover 165 may be receivedin the first housing structure 110 and the second housing structure 120and may not form the exterior of the electronic device 100.

In the illustrated embodiment, each of the first housing structure 110and the second housing structure 120 may be rotated about the hingecover 165 through a certain angle. The folding axis (the axis F) of thefirst housing structure 110 and the second housing structure 120 mayextend parallel to the direction in which the hinge cover 165 extends.The folding axis (the axis F) may be formed by the above-described hingestructure (e.g., the hinge structure 164 of FIG. 3). The folding axis(the axis F) may refer to a virtual axis about which the first housingstructure 110 and the second housing structure 120 rotate. In the foldedstate, the folding axis (the axis F) may be formed between the firsthousing structure 110 and the second housing structure 120. The foldingaxis (the axis F) may be formed in a position spaced apart from thehinge cover 165 at a certain interval d in the direction toward thefront surface of the electronic device 100.

The electronic device 100 disclosed herein may include one or morefolding axes (the axis F). For example, the folding axes (the axis F)may include a first folding axis (an axis Fa) about which the firsthousing structure 110 rotates and a second folding axis (an axis Fb)about which the second housing structure 120 rotates. In this case, thefirst folding axis (the axis Fa) and the second folding axis (the axisFb) may extend parallel to each other.

The first housing structure 110 may rotate about the first folding axisFa along an arc-shaped path. The second housing structure 120 may rotateabout the second folding axis Fb along an arc-shaped path. The firsthousing structure 110 and the second housing structure 120 may rotate inopposite directions.

The folding axis F disclosed herein may refer to a central axis aboutwhich the first housing structure 110 and the second housing structure120 are folded or unfolded (a folded state or a flat state), and may notrefer to a shaft (e.g., a pivot shaft) that enables physical driving.For example, the first housing structure 110 and the second housingstructure 120 may be rotated about the first folding axis F_(a) and thesecond folding axis F_(b) along the arc-shaped paths in the oppositedirections, respectively. Accordingly, the first housing structure 110and the second housing structure 120 may be folded about the foldingaxis F.

In the illustrated embodiment, the first housing structure 110 mayinclude the first back cover 140 that forms the rear surface of theelectronic device 100 and the rear area 141 formed on the first backcover 140. The first housing structure 110 may be connected to one sideof the hinge cover 165 in a direction perpendicular to the folding axis(the axis F). The first housing structure 110 may rotate about theillustrated folding axis (the axis F) relative to the hinge cover 165.

In the illustrated embodiment, the second housing structure 120 mayinclude the second back cover 150 that forms the rear surface of theelectronic device 100 and the rear display area 152 and/or a rear sensorarea 154 that is formed on the second back cover 150. The second housingstructure 120 may be connected to an opposite side of the hinge cover165 in a direction perpendicular to the folding axis (the axis F). Thesecond housing structure 120 may rotate about the illustrated foldingaxis (the axis F) relative to the hinge cover 165.

In the illustrated embodiment, the hinge cover 165 may extend in thedirection of the folding axis (the axis F). The hinge cover 165 mayinclude a curved surface having a curvature corresponding to thecurvature of rotation of the first housing structure 110 or the secondhousing structure 120.

FIGS. 5A and 5B are sectional views illustrating a folded state and aflat state of an electronic device according to various embodiments ofthe disclosure. FIG. 5A is a sectional view taken along line A-A′ ofFIG. 4A. FIG. 5B is a sectional view taken along line B-B′ of FIG. 4B.

Referring to FIGS. 5A and 5B, the electronic device 200 may include afolded state (FIG. 5A) and a flat state (FIG. 5B). The folded state(FIG. 5A) may include a state in which a folding area 253 of a flexibledisplay 250 is formed to be a curved surface. The flat state (FIG. 5B)may include a state in which the folding area 253 of the flexibledisplay 250 is formed to be a flat surface.

In the illustrated embodiment, the flexible display 250 may include afirst area 251 formed to be a flat surface, a second area 252 formed tobe a flat surface, and the folding area 253 that is able to be deformedinto a flat surface or a curved surface.

The folded state of the electronic device 200 may include a state inwhich the folding area 253 forms a curved surface having a certaincurvature. In this case, the first area 251 and the second area 252 maybe disposed such that the normal vectors thereof form a certain anglerather than 0 degrees.

The flat state of the electronic device 200 may include a state in whichthe folding area 253 forms substantially the same plane as the firstarea 251 and the second area 252. For example, in the flat state, thefirst area 251 and the second area 252 may face the same direction(e.g., the direction toward the front surface of the electronic device).In the flat state, the first area 251 and the second area 252 may bedisposed such that the normal vectors thereof form 0 degrees.

In the illustrated embodiment, the flexible display 250 may furtherinclude metal layers 254 and 255. The metal layers 254 and 255 maysupport the rear surface of the flexible display 250 to allow theflexible display 250 to remain flat in the flat state. The metal layers254 and 255 may include the first metal layer 254 that is attached tothe rear surface of the first area 251 and that has a portion extendingto the folding area 253 and the second metal layer 255 that is attachedto the rear surface of the second area 252 and that has a portionextending to the folding area 253. The first metal layer 254 and thesecond metal layer 255 may be detached from the rear surface of thefolding area 253. Accordingly, in the folded state, the first metallayer 254 and the second metal layer 255 may be formed to be flatsurfaces that extend from the first area 251 and the second area 252 andface each other. The first metal layer 254 and the second metal layer255 may extend in tangential directions of the folding area 253 in thefolded state. At least a portion of the first metal layer 254 and atleast a portion of the second metal layer 255 may be received in a thirdrecess 2331 formed on a hinge housing 230.

In the illustrated embodiment, in the folded state, the flexible display250 may be disposed such that at least a portion of the folding area 253is received in the hinge housing 230. At least a portion of the foldingarea 253 may overlap a protruding portion 234 of the hinge housing 230when viewed in the direction of the folding axis F.

In the illustrated embodiment, a first housing 210 may include a firstback cover 218 that forms the rear surface of the electronic device 200in the flat state (FIG. 5B). The first back cover 218 may be opposite tothe first area 251 of the flexible display 250 in the flat state. Afirst recess 219 may be formed between the first back cover 218 and thefirst area 251.

In the illustrated embodiment, the first housing 210 may include thefirst recess 219 in which at least a portion of the hinge housing 230 isreceived. The first recess 219 may be formed in a shape that is opentoward the hinge housing 230. In this case, the first recess 219 mayinclude a first rotation support surface 217 including a curved surfacehaving a curvature corresponding to the curvature of rotation of thefirst housing 210.

In the illustrated embodiment, a second housing 220 may include a secondback cover 228 that forms the rear surface of the electronic device 200in the flat state (FIG. 5B). The second back cover 228 may be oppositeto the second area 252 of the flexible display 250 in the flat state. Asecond recess 229 may be formed between the second back cover 228 andthe second area 252.

In the illustrated embodiment, the second housing 220 may include thesecond recess 229 in which at least a portion of the hinge housing 230is received. The second recess 229 may be formed in a shape that is opentoward the hinge housing 230. In this case, the second recess 229 mayinclude a second rotation support surface 227 including a curved surfacehaving a curvature corresponding to the curvature of rotation of thesecond housing 220.

In the illustrated embodiment, in the flat state, a portion of the hingehousing 230 may be disposed in the first recess 219, and the remainingportion of the hinge housing 230 may be disposed in the second recess229. Accordingly, the hinge housing 230 may not be exposed to theoutside of the electronic device 200. In the folded state, the hingehousing 230, together with the first housing 210 and the second housing220, may form a portion of the exterior of the electronic device 200.

In the illustrated embodiment, the hinge housing 230 may include a firstsurface 231 facing toward the rear surface of the flexible display 250in the flat state, a second surface 232 that is opposite to the firstsurface 231 and that has at least a portion formed to be a curvedsurface, and an inner surface 233 that forms the third recess 2331. Thethird recess 2331 in which a portion of the first metal layer 254 and aportion of the second metal layer 255 are received in the folded statemay be formed on the first surface 231. The protruding portion 234facing the periphery of the flexible display 250 may be formed on thefirst surface 231 of the hinge housing 230. With respect to the flatstate, the protruding portion 234 may protrude from the first surface231 of the hinge housing 230 in the direction that the flexible display250 faces (e.g., the direction toward the front surface). The protrudingportion 234 may be formed to overlap at least a portion of the foldingarea 253 of the flexible display 250 when viewed in the direction of thefolding axis F. The protruding portion 234 may be formed to overlap thefolding area 253, a portion of the first area 251, and a portion of thesecond area 252 in the flat state when viewed in the direction of thefolding axis F.

FIG. 6 is a view illustrating the hinge housing 230 of the electronicdevice according to an embodiment of the disclosure.

Referring to FIG. 6, the hinge housing 230 may be formed in a shapeextending in a folding axis direction F. The hinge housing 230 mayinclude a sidewall 235 extending from the second surface 232 andincluding the protruding portion 234. The sidewall 235, together withthe inner surface 233, may form an interior space 2332 of the hingehousing 230.

A portion of a hinge structure (e.g., the hinge structure 164 of FIG. 3)and/or a portion of a connecting member (e.g., the connecting member 163of FIG. 3) may be disposed in the interior space 2332.

In the illustrated embodiment, the sidewall 235 may include a firstsidewall 235-1 and a second sidewall 235-2 facing the first sidewall235-1. A portion of the flexible display 250 may be disposed between thefirst sidewall 235-1 and the second sidewall 235-2. For example, thefolding area 253 may be disposed between the first sidewall 235-1 andthe second sidewall 235-2.

The first sidewall 235-1 may include a first protruding portion 234-1that protrudes toward the front surface of the electronic device 200.The first protruding portion 234-1 may include a surface facing thefolding axis direction F. The first protruding portion 234-1 may face afirst edge 250-1 of the flexible display 250. The first edge 250-1 mayinclude an edge extending in a direction perpendicular to the foldingaxis direction F among the edges of the flexible display 250.

The second sidewall 235-2 may include a second protruding portion 234-2that protrudes toward the front surface of the electronic device 200.The second protruding portion 234-2 may include a surface facing thefolding axis direction F. The second protruding portion 234-2 may face asecond edge 250-2 of the flexible display 250. The second edge 250-2 mayinclude an edge extending in a direction perpendicular to the foldingaxis direction F among the edges of the flexible display 250. The secondedge 250-2 may be opposite to the first edge 250-1 and may be parallelwith the first edge 250-1.

In the illustrated embodiment, the protruding portion 234 may furtherinclude a cushioning member 240 formed toward the flexible display 250.The cushioning member 240 may be disposed between the edges 250-1 and250-2 of the flexible display 250 and the protruding portion 234 toprevent the flexible display 250 from directly colliding with theprotruding portion 234.

In the illustrated embodiment, the cushioning member 240 may include afirst cushioning member 240-1 disposed between the first edge 250-1 ofthe flexible display 250 and the first protruding portion 234-1 and asecond cushioning member 240-2 disposed between the second edge 250-2 ofthe flexible display 250 and the second protruding portion 234-2. Thefirst cushioning member 240-1 and the second cushioning member 240-2 mayabsorb part of shock applied to the flexible display 250.

FIGS. 7A and 7B are views illustrating the cushioning member and theprotruding portion of the electronic device according to variousembodiments of the disclosure.

Referring to FIGS. 7A and 7B, the cushioning member 240 may include afirst portion 241 and a second portion 242 extending from the firstportion 241. The first portion 241 may include a bonding surface 245attached to a bottom surface of a first recess 237 of the protrudingportion 234 and an opposite surface 243 that is opposite to the bondingsurface 245 and that faces toward the interior space 2332 of the hingehousing 230. The bonding surface 245 may include an adhesive member 244on at least a partial area thereof. The bonding surface 245 may beattached to the bottom surface of the first recess 237 of the protrudingportion 234 by the adhesive member 244. The second portion 242 may bereceived in a second recess 239 formed on the inner surface 233 of thehinge housing 230. The second portion 242 may include a seating surface246 that is seated on a bottom surface 2391 of the second recess 239.

In the illustrated embodiment, the opposite surface 243 may include afirst area 243-1 facing the folding axis direction F and a second area243-2 that extends from the first area 243-1 and that is inclined withrespect to folding axis directions F1 and F2. The first portion 241 maybe formed such that the thickness of the portion where the first area243-1 is formed is greater than the thickness of the portion where thesecond area 243-2 is formed. That is, the second area 243-2 mayobliquely extend from the first area 243-1 to have a decreasing distanceto the bonding surface 245.

In the illustrated embodiment, the hinge housing 230 may include thefirst recess 237 in which the first portion 241 is received and thesecond recess 239 in which the second portion 242 is received. Thebonding surface 245 of the first portion 241 may be attached to thebottom surface of the first recess 237. The second recess 239 may beformed in a shape that is open in the folding axis direction F2. Forexample, the second recess 239 may be formed in a shape that is opentoward the interior space 2332 of the hinge housing 230. This maycorrespond to the sliding direction and the compression direction of thecushioning member 240 as will be described below with reference to FIGS.10A to 10C. The seating surface 246 of the second portion 242 may beseated on the bottom surface 2391 of the second recess 239. The bottomsurface 2391 of the second recess 239 may be formed in a lower positionthan the surrounding area. The bottom surface 2391 of the second recess239 may be formed to be longer in a folding axis direction (e.g., thedirection F2) than the seating surface 246 of the cushioning member 240.The bottom surface 2391 and sidewalls 2392 and 2393 of the second recess239 may be formed to have a width corresponding to the seating surface246 of the cushioning member 240 (e.g., in a direction perpendicular tothe folding axis directions F1 and F2). Accordingly, the cushioningmember 240 may be constrained in the width direction by the sidewalls2392 and 2393 and may be movable in the folding axis directions F1 andF2 because the second recess 239 is open in the folding axis directionF2.

FIG. 8 is a view illustrating the flexible display and the hinge housingof the electronic device according to an embodiment of the disclosure.FIG. 8 is a sectional view of the folding axis F of the hinge housingillustrated in FIG. 4A.

Referring to FIG. 8, in the illustrated embodiment, the electronicdevice 200 may include the flexible display 250 and the hinge housing230 in which at least a portion of the flexible display 250 is received.In this case, the portion of the flexible display 250 that is receivedin the hinge housing 230 may be an area (e.g., the folding area 253),the shape of which is able to be deformed depending on a state of theelectronic device 200.

The hinge housing 230 may include the inner surface 233 and the sidewall235 that form the interior space 2332. The sidewall 235 may be formed toface the folding axis direction F2. The sidewall 235 may include theprotruding portion 234 facing the flexible display 250. The protrudingportion 234 may extend from the sidewall 235 in the direction that theflexible display 250 faces. The protruding portion 234 may include thefirst recess 237 formed on the surface facing toward the flexibledisplay 250. The first recess 237 may be formed on the surface of theprotruding portion 234 and/or the sidewall 235 that faces toward theinterior space 2332 of the hinge housing 230. The first recess 237 maybe recessed in the folding axis direction F1. The hinge housing 230 mayinclude the second recess 239 formed on a portion of the inner surface233 adjacent to the sidewall 235. The second recess 239 may be recessedin a direction perpendicular to the folding axis directions F1 and F2.Portions of the cushioning member 240 may be received in the firstrecess 237 and the second recess 239.

The cushioning member 240 may include the first portion 241 coupled tothe sidewall 235 of the hinge housing 230 and the second portion 242coupled to the inner surface 233 of the hinge housing 230. At least partof the first portion 241 may be received in the first recess 237 of thehinge housing 230. The second portion 242 may be received in the secondrecess 239 of the hinge housing 230.

The first recess 237 may include a first inner wall 2372 and a secondinner wall 2373 that face each other and a first bottom surface 2371 towhich the bonding surface 245 of the cushioning member 240 is bonded. Atleast part of the first portion 241 of the cushioning member 240 may bedisposed between the first inner wall 2372 and the second inner wall2373. The bonding surface 245 of the first portion 241 of the cushioningmember 240 may be attached to the first bottom surface 2371 of the firstrecess 237. The bonding surface 245 of the cushioning member 240 may bebonded to the first bottom surface 2371 by the adhesive member 244. Atleast part of the second portion 242 of the cushioning member 240 may beseated on the second bottom surface 2391 of the second recess 239. Atleast part of the second portion 242 of the cushioning member 240 may behidden by the flexible display 250 when the flexible display 250 isviewed from above. Whether the cushioning member 240 is accuratelycoupled with the hinge housing 230 may be determined through the seatingposition of the second portion 242. For example, in the case where thesecond portion 242 protrudes outside the second bottom surface 2391(e.g., into the interior space 2332 of the hinge housing 230), it can beseen that the first portion 241 is not firmly coupled. Accordingly, adefect that is likely to occur in an assembly process of the cushioningmember 240 may be prevented.

The term “gaps” used herein may refer to distances in the folding axisdirections F1 and F2. The protruding portion 234 may be spaced apartfrom the folding area 253 of the flexible display 250 by at least afirst gap d1. The cushioning member 240 may be spaced apart from thefolding area 253 of the flexible display 250 by at least a second gapd2.

The first gap d1 may be larger than the second gap d2. In other words,the cushioning member 240 may be disposed closer to the folding area 253of the flexible display 250 than the protruding portion 234. In the casewhere external shock is applied to the electronic device 200, theflexible display 250 may move in the folding axis direction F1 (e.g.,the direction toward the protruding portion 234), and the periphery ofthe flexible display 250 may collide with the opposite surface 243 ofthe cushioning member 240.

When the flexible display 250 is viewed from above, the cushioningmember 240 may further protrude toward the flexible display 250 beyondthe protruding portion 234. This structure may prevent the flexibledisplay 250 from directly colliding with the protruding portion 234,thereby protecting the folding area 253 vulnerable to shock.

A C-Cut structure may be formed on the surface of the protruding portion234 that faces the folding area 253. The first inner wall 2372, thesecond inner wall 2373, and the first bottom surface 2371 of the firstrecess 237, which have been described above, may form the C-Cutstructure. The C-Cut structure may protect the cushioning member 240 andmay reduce the area by which the cushioning member 240 is exposed on theexterior of the electronic device 200.

The cushioning member 240 may include the opposite surface 243 thatfaces the folding area 253 of the flexible display 250. The oppositesurface 243 may include the first area 243-1 substantially facing thefolding axis direction F2 and the second area 243-2 that extends fromthe first area 243-1 and that is inclined to be spaced farther away fromthe folding area 253. At least a portion of the first inner wall 235 ofthe protruding portion 234 may have a slope corresponding to a virtualinclined surface extending from the second area 243-2. In variousembodiments, the angle θ of the second area 243-2 with respect to thefolding axis direction F1 may range from 50 degrees to 80 degrees. Theangle θ may preferably be about 66 degrees.

The cushioning member 240 may be partially exposed on the exterior ofthe electronic device 200 through the space between the flexible display250 and the protruding portion 234. The slope structure and the C-Cutstructure (e.g., the first recess 237), which are illustrated, mayreduce the area by which the cushioning member 240 is exposed on theexterior of the electronic device 200, thereby improving an aestheticimpression of the electronic device 200.

The first area 243-1 of the opposite surface 243 may be spaced apartfrom the folding area 253 by the second gap d2, and the second area243-2 of the opposite surface 243 may be spaced apart from the foldingarea 253 by a third gap d3 larger than the second gap d2. In this case,the protruding portion 234 may be spaced apart from the folding area 253by the first gap d1 larger than the second gap d2.

The smallest gap (e.g., the first gap d1) between the protruding portion234 and the folding area 253 may be larger than the largest gap (e.g.,the third gap d3) between the cushioning member 240 and the folding area253. In other words, the cushioning member 240 may be disposed closer tothe folding area 253 than the protruding portion 234. The cushioningmember 240, when viewed in the folding axis directions F1 and F2, may bedisposed closer to the folding area 253 than the protruding portion 234.

FIG. 9A is a view illustrating the cushioning member of the electronicdevice according to an embodiment of the disclosure. FIG. 9B is a viewillustrating the cushioning member and the flexible display of theelectronic device according to an embodiment of the disclosure. FIG. 9Cis a view illustrating the cushioning member and the flexible display ofthe electronic device according to an embodiment of the disclosure.

Referring to FIG. 9A to 9C, the hinge housing 230 may include the outersurfaces 231 and 232 that form the exterior, the inner surface 233 thatforms the interior space 2332, the protruding portion 234 formed in thefolding axis direction F, and the cushioning member 240 coupled to theprotruding portion 234. The outer surfaces 231 and 232 of the hingehousing 230 may include the first surface 231 facing toward the flexibledisplay 250 in a flat state and the second surface 232 that is oppositeto the first surface 231 and that has at least a portion formed to be acurved surface. The cushioning member 240, when viewed in the directionof the folding axis F, may be formed to at least partially overlap thefolding area 253 of the flexible display 250.

At least part of the first portion 241 of the cushioning member 240 maybe coupled to the protruding portion 234, and at least part of thesecond portion 242 of the cushioning member 240 may be coupled to theinner surface 233. The first portion 241 may further protrude toward thefolding area 253 beyond the opposite surface 243 of the protrudingportion 234.

The electronic device 200 may be formed such that the folding area 253of the flexible display 250 faces a portion of the cushioning member 240in a folded state. In the folded state, the periphery of the foldingarea 253 may face the first portion 241 of the cushioning member 240. Inthe folded state, at least a portion of the first metal layer 254 and atleast a portion of the second metal layer 255 may be received in thethird recess 2331 formed on the first surface 231 of the hinge housing230. The third recess 2331 may be recessed toward the inner surface 233from the first surface 231.

The electronic device 200 may be formed such that the folding area 253of the flexible display 250 faces a portion of the cushioning member 240in a flat state. In the flat state, the flexible display 250 may bedisposed such that at least portions of the peripheries of the firstarea 251, the second area 252, the first metal layer 254, and the secondmetal layer 255 face the first portion 241 of the cushioning member 240.

In the illustrated embodiment, when viewed in the folding axis directionF, the flexible display 250 may be disposed such that the folding area253 overlaps the cushioning member 240. In the folded state, the foldingarea 253 may be disposed to overlap the first portion 241 of thecushioning member 240. In the flat state, portions of the folding area253, the first area 251, and the second area 252 may be disposed tooverlap the first portion 241 of the cushioning member 240.

The protruding portion 234 may be formed of a rigid metallic material.The cushioning member 240 may contain a shock-absorbing material capableof absorbing shock.

FIGS. 10A to 10C are views illustrating the flexible display and thecushioning member in the case where the electronic device is dropped,according to various embodiments of the disclosure.

FIG. 11 is a view illustrating a drop impact applied to the flexibledisplay of the electronic device according to an embodiment of thedisclosure.

Referring to FIGS. 10A-10C and 11, in the illustrated embodiment, theflexible display 250 may be disposed so as to be movable by a certainrange in the folding axis direction F inside the electronic device 200(e.g., inside the first housing 210 and inside the second housing 220).This is intended to relieve shear stress that is likely to be generatedbetween the rear surface of the flexible display 250 and the inside ofthe housing (e.g., the first support member 161 and the second supportmember 162 of FIG. 3), and the flexible display 250 may be attached soas to be movable in a predetermined range inside the housing (e.g., thefirst support member 161 and the second support member 162 of FIG. 3).

The center of gravity of the electronic device 200 including theflexible display 250 may be formed on an end portion of the hingehousing 230 in the folding axis direction F. Accordingly, in the casewhere the electronic device 200 drops in a folded state, a drop impactmay be applied to the end portion (e.g., the protruding portion) of thehinge housing 230.

Referring to FIGS. 10A to 10C, the folding area 253 of the flexibledisplay 250 coupled to the housings 210 and 220 so as to be movable maymove toward the protruding portion 234 by inertia.

Referring to FIG. 11, the cushioning member 240 may be formed toprotrude toward the folding area 253 so as to prevent the folding area253 from directly colliding with the protruding portion 234. Thecushioning member 240 may absorb shock applied to the folding area 253,thereby protecting the foldable display 250 from a drop impact.

The folding area 253 of the flexible display 250 may be more vulnerableto shock than other areas (e.g., the first area 251 and the second area252). The folding area 253 may be an area formed when a plurality oflayers included in the flexible display 250 are bent in a folded state.Shear stress may be formed depending on the difference in radius ofcurvature between the plurality of layers included in the folding area253. For this reason, the folding area 253 may be more vulnerable toshock than other areas (e.g., the first area 251 and the second area252). Accordingly, the electronic device 200 disclosed herein mayinclude the cushioning member 240 further protruding toward the foldingarea 253 and may prevent the folding area 253 from directly collidingwith the protruding portion 234.

The electronic device 200 disclosed herein may include the cushioningmember 240 formed between the hinge housing 230 containing a metallicmaterial and the folding area 253 of the flexible display 250.

Referring to FIG. 11, shock applied to the folding area 253 may beweaker when the folding area 253 makes contact with the cushioningmember 240 than when the folding area 253 makes contact with theprotruding portion 234. It can be understood that the cushioning member240 absorbs part of the shock.

The shock-relieving structure including the cushioning member 240disclosed herein is not necessarily limited to being applied to thefoldable electronic devices 100 and 200 illustrated in FIGS. 1 to 10C.For example, the shock-relieving structure may be applied to anelectronic device including a rollable display containing a rolling areain at least a portion thereof or a foldable electronic device (e.g., anout-folding electronic device shown in FIG. 15A) that forms the exteriorof the electronic device in a folded state. The shock-relievingstructure disclosed herein may be applied to various electronic devicesincluding a display, at least a portion of which is formed to be acurved surface.

FIGS. 12A to 12C are views illustrating assembly of the cushioningmember and the hinge housing of the electronic device according tovarious embodiments of the disclosure.

Referring to FIGS. 12A to 12C, the cushioning member 240 may be coupledto the protruding portion 234 such that the first portion 241 isreceived in the first recess 237 and the second portion 242 is receivedin the second recess 239. The bonding surface 245 of the first portion241 may be attached to the first bottom surface 2371 of the first recess237 by the adhesive member 244. The seating surface 246 of the secondportion 242 may be seated on the second bottom surface 2391 of thesecond recess 239. The seating surface 246 may be formed such that thelength in the folding axis directions F1 and F2 corresponds to thelength of the second bottom surface 2391 in the folding axis directionsF1 and F2. This may be used as an indicator for determining whether thecushioning member 240 is accurately coupled to the protruding portion234 in an assembly process of the cushioning member 240. For example, inthe case where the seating surface 246 protrudes outside the secondbottom surface 2391 of the second recess 239 (e.g., in the directiontoward the interior space 2332), it may be determined that thecushioning member 240 is not accurately coupled to the protrudingportion 234.

Referring to FIGS. 12A to 12C, the cushioning member 240 may be slidablycoupled to the protruding portion 234 such that the first portion 241 isinserted into the first recess 237 formed on the protruding portion 234and the second portion 242 is inserted into the second recess 239. Thesliding direction of the cushioning member 240 may be the folding axisdirection F1. Correspondingly, the second recess 239 may be open in thedirection (e.g., F2) opposite to the sliding direction. An additionalcompression process may be performed on the cushioning member 240 tofirmly couple the cushioning member 240 to the protruding portion 234.At this time, the compression direction of the cushioning member 240 maybe a direction (e.g., F1) parallel with the sliding direction.

FIGS. 13A to 13C are views illustrating a cushioning member and a hingehousing of an electronic device according to various embodiments of thedisclosure.

Referring to FIGS. 13A to 13C, the electronic device may include thehinge housing 330 and the cushioning member 340 coupled to the hingehousing 330.

In the illustrated embodiment, the hinge housing 330 may include asidewall 331 formed at one end in a rotational axis direction (e.g.,F1), an inner surface 332 that forms an interior space 333 together withthe sidewall 331, and one or more coupling protrusions 335 formed on thesidewall 331.

The cushioning member 340 may be coupled to the coupling protrusions335. The coupling protrusions 335 may protrude from the sidewall 331 ofthe hinge housing 330 in the +z-axis direction. Each of the couplingprotrusions 335 may include a first portion 335-1 extending in the+z-axis direction and a second portion 335-2 extending from the firstportion 335-1 in a direction perpendicular to the z-axis. For example,the second portion 335-2 may extend from the first portion 335-1 in afolding axis direction F1 or F2, or may extend from the first portion335-1 in the x-axis direction as illustrated in the drawings.

The cushioning member 340 may be coupled to the coupling protrusions 335formed on the hinge housing 330. The cushioning member 340 may includean opposite surface 342 substantially facing toward the interior space333 of the hinge housing 330. In the case where the cushioning member340 is coupled to the hinge housing 330, the opposite surface 342 may bea surface extending from the sidewall 331 of the hinge housing 330. Thecushioning member 340 may include a second recess 349 formed on theopposite surface 342. The second recess 349 may be connected with afirst recess 339 formed on the hinge housing 330. The second recess 349of the cushioning member 340 may be open in the direction toward thesidewall 331 of the hinge housing 330, and the first recess 339 of thehinge housing 330 may be open in the direction toward the cushioningmember 340. In the state in which the cushioning member 340 is coupledto the hinge housing 330, the first recess 339 and the second recess 349may be connected with each other in the open directions. The cushioningmember 340 may contain a cushioning material capable of absorbing shock.

FIG. 14 is a view illustrating the hinge housing and the cushioningmember of the electronic device according to an embodiment of thedisclosure. FIG. 14 is a sectional view taken along line C-C′illustrated in FIG. 13A.

Referring to FIG. 14, the flexible display 250 may be disposed such thatthe edge of the folding area 253 faces the sidewall 331 of the hingehousing 330 and the opposite surface 342 of the cushioning member 340.The folding area 253 of the flexible display 250 may be spaced apartfrom the sidewall 331 of the hinge housing 330 and the opposite surface342 of the cushioning member 340 by certain gaps. For example, thefolding area 253 may be spaced apart from the sidewall 331 of the hingehousing 330 by a first gap d1, and the folding area 253 may be spacedapart from the opposite surface 342 of the cushioning member 340 by asecond gap d2 smaller than the first gap d1.

The cushioning member 340 may further protrude in the direction (e.g.,the direction F2) toward the interior space 333 of the hinge housing 330beyond the sidewall 331 of the hinge housing 330. Accordingly, in thecase where the flexible display 250 is moved in the folding axisdirection F1 by external shock, the edge of the folding area 253 maycollide with the cushioning member 340, and the shock applied to theflexible display 250 may be absorbed by the cushioning member 340.

The first recess 339 formed on the sidewall 331 of the hinge housing 330and the second recess 349 formed on the opposite surface 342 of thecushioning member 340 may be connected to form one recess.

The cushioning member 340 may include a support surface 343 facing thesidewall 331. An opening 347 into which the coupling protrusion 335 ofthe hinge housing 330 is inserted may be formed on the support surface343. The opening 347 may be recessed from the support surface 343 of thecushioning member 340 in the +z-axis direction.

The opening 347 of the cushioning member 340 may be formed to be smallerthan the coupling protrusion 335 such that the coupling protrusion 335is press-fit into the opening 347. For example, the diameter of theopening 347 may be smaller than the diameter of a portion (e.g., thesecond portion 335-2 of FIG. 13B) of the coupling protrusion 335. Forexample, a second portion (e.g., the second portion 335-2 of FIG. 13B)of the coupling protrusion 335 may be press-fit into the opening 347.

FIGS. 15A to 15C are views illustrating shock-relieving structures offoldable electronic devices according to various embodiments of thedisclosure.

FIG. 15A is a view illustrating an out-folding type foldable electronicdevice 1501 according to an embodiment of the disclosure. FIG. 15B is aview illustrating an in-folding type foldable electronic device 1502(e.g., the electronic device 100 of FIGS. 1 to 3) according to anembodiment of the disclosure. FIG. 15C is a sectional view of a foldingaxis F of each of the foldable electronic devices illustrated in FIGS.15A and 15B according to an embodiment of the disclosure.

Referring to FIGS. 15A-15C, the out-folding type foldable electronicdevice 1501 may include an electronic device in which the flexibledisplay 250 forms the exterior of the foldable electronic device in afolded state.

The foldable electronic devices 1501 and 1502 may include a housingstructure that includes a plate structure 1506 on which the flexibledisplay 250 is seated and a frame structure 1505 that surrounds at leasta portion of the periphery of the flexible display 250. The framestructure 1505 may surround the plate structure 1506. The framestructure 1505 and the plate structure 1506 may be integrated with eachother, or may be assembled as separate members.

The plate structure 1506 may be referred to as the support memberassembly 160 illustrated in FIG. 3. The frame structure 1505 may bereferred to as the first side member 113 and the second side member 123illustrated in FIG. 1.

The flexible display 250 may be attached to the plate structure 1506 soas to be movable in a certain range. For example, the flexible display250 may be attached to the plate structure 1506 by a double-sided tape,but may be minutely moved in the certain range in the direction of thefolding axis F.

The frame structure 1505 may include a first frame structure 1510surrounding at least a portion of the first area 251, a second framestructure 1520 surrounding at least a portion of the second area 252,and a third frame structure 1530 surrounding at least a portion of thefolding area 253. The third frame structure 1530 may include theprotruding portion 234 described above with reference to FIGS. 5A to12C.

The frame structure 1505 may include a shock-relieving structure on atleast a portion thereof. The shock-relieving structure may be formed ina position corresponding to the folding area 253 of the flexible display250. The shock-relieving structure may include a shock-absorbing member1550 (e.g., the cushioning member 240 of FIGS. 5A to 12C) that protrudestoward the flexible display 250. The shock-absorbing member 1550 may beformed closer to the periphery of the flexible display 250 than otherportions of the frame structure 1505.

Referring to FIG. 15C, the third frame structure 1530 may be spacedapart from the flexible display 250 by a first gap d1, and theshock-absorbing member 1550 may be spaced apart from the flexibledisplay 250 by a second gap d2. Accordingly, the folding area 253relatively vulnerable to shock may be prevented from directly collidingwith the frame structure 1505 formed of a metallic material. In variousembodiments, the shock-absorbing member 1550 may be integrally formedwith the frame structure 1505. For example, the shock-absorbing member1550 may include an injection-molded part on a portion of the framestructure 1505 formed of a metallic material.

The shock-relieving structure disclosed herein may be applied to variouselectronic devices including the flexible display 250 that includes anarea that is able to be deformed (into a flat surface or a curvedsurface) irrespective of the direction in which the flexible display 250is folded (e.g., in-folding 1501, out-folding 1502, and double-folding(not illustrated)).

FIG. 16 is a view illustrating a hinge housing and a cushioning memberof an electronic device according to an embodiment of the disclosure.

Referring to FIG. 16, in the illustrated embodiment, the hinge housing430 may include a sidewall 431 to which the cushioning member 440 iscoupled, an inner surface 432 that forms an interior space 433 of thehinge housing 430 together with the sidewall 431, and an outer surface434 that forms the exterior of the electronic device. At least a portionof the sidewall 431 may face folding axis directions F1 and F2. Thecushioning member 440 may be disposed on the inside of the sidewall 431.

In the illustrated embodiment, at least a portion of the cushioningmember 440 may be formed on the inside of the sidewall 431 to facetoward the interior space 433 of the hinge housing 430. Unlike in theother embodiments described above, the hinge housing 430 illustrated inFIG. 16 may omit a protruding structure (e.g., the protruding portion234 of FIGS. 5A to 14 or the coupling protrusion 335 of FIG. 13B) thatis formed on the sidewall 431.

The cushioning member 440 may further protrude toward the interior space433 of the hinge housing 430 beyond the sidewall 431 of the hingehousing 430.

A portion of the cushioning member 440 may be received in a recess 435formed on the sidewall 431 of the hinge housing 430. The remainingportion of the cushioning member 440 may further protrude toward theinterior space 433 of the hinge housing 430 beyond a peripheral portionof the recess 435. Accordingly, a flexible display (e.g., the foldingarea 253 of the flexible display 250 of FIG. 14) may be prevented frombeing damaged by directly colliding with the sidewall 431.

In some embodiments (not illustrated), at least a portion of thecushioning member 440 may be located in the interior space 433 of thehinge housing 430, and the remaining portion of the cushioning member440 may extend outside the interior space 433 (e.g., in the +z-axisdirection).

According to embodiments of the disclosure, an electronic device mayinclude a hinge housing 230 extending in a direction of a folding axisF, a first housing 210 connected to one side of the hinge housing 230 ina direction perpendicular to the folding axis F to rotate about thefolding axis F relative to the hinge housing 230, a second housing 220connected to an opposite side of the hinge housing 230 in a directionperpendicular to the folding axis F to rotate about the folding axis Frelative to the hinge housing 230, and a flexible display 250 includinga folding area 253 at least partially disposed in the hinge housing 230and formed to be a flat surface or a curved surface, a first area 251extending from the folding area 253 in one direction perpendicular tothe folding axis F, and a second area 252 extending from the foldingarea 253 in an opposite direction perpendicular to the folding axis F,and the hinge housing 230 may include protruding portions 234 formed onopposite end portions of the hinge housing in the direction of thefolding axis F and adjacent to a periphery of the flexible display 250and cushioning members 240 disposed between the protruding portions 234and the periphery of the flexible display 250 and spaced apart from theperiphery of the flexible display 250 by a certain gap.

Each of the protruding portions 234 may include a first protrudingportion 234-1 located on one side with respect to the direction of thefolding axis F and a second protruding portion 234-2 located on anopposite side with respect to the direction of the folding axis F, andeach of the cushioning members 240 may include a first cushioning member240-1 formed between the first protruding portion 234-1 and an edge ofthe folding area 253 and a second cushioning member 240-2 formed betweenthe second protruding portion 234-2 and the edge of the folding area253.

Each of the protruding portions 234 may be spaced apart from an edge ofthe folding area 253 of the flexible display 250 by a first gap d1, andeach of the cushioning members 240 may be spaced apart from the edge ofthe folding area 253 of the flexible display 250 by a second gap d2smaller than the first gap.

Each of the protruding portions 234 may include a first recess 237formed on a surface facing an edge of the folding area 253, and each ofthe cushioning members 240 may be at least partially received in thefirst recess 237.

Each of the cushioning members 240 may be formed to overlap a portion ofthe folding area 253 when the flexible display 250 is viewed in thedirection of the folding axis F.

Each of the cushioning members 240 may include a first portion facing anedge of the folding area 253 of the flexible display 250 and a secondportion extending from the first portion toward a space between theflexible display 250 and the hinge housing 230.

The second portion may be formed to be at least partially hidden by theflexible display 250 when the hinge housing 230 is viewed from above.

The hinge housing 230 may include an inner surface 233 facing a rearsurface of the folding area 253 of the flexible display 250 and asidewall 235 extending from the inner surface 233 and including an areafacing the direction of the folding axis F, each of the protrudingportions 234 may protrude from the sidewall 235 toward a front surfaceof the flexible display 250, and a portion of each of the cushioningmembers 240 may be coupled to the protruding portion 234, and theremaining portion of the cushioning member extends to the inner surface.

The inner surface may include a second recess 239 in which at least aportion of the cushioning member 240 is received, and the second recess239 may be open in the direction of the folding axis F.

Each of the cushioning members 240 may include a first portion includinga bonding surface 245 attached to each of the protruding portions 234and an opposite surface 234 opposite to the bonding surface 245 andfacing the folding area 253 and a second portion including a seatingsurface 246 that is seated on an inner surface of the hinge housing 230.The cushioning member 240 may be coupled with the hinge housing 230 suchthat the bonding surface 245 is attached to a first bottom surface of afirst recess formed on the protruding portion 234 and the seatingsurface 246 is located on a second bottom surface 2391 of a secondrecess 239 formed on the inner surface of the hinge housing 230.

The opposite surface 243 may include a first area 251 facing thedirection of the folding axis F and a second area 252 that extends fromthe first area 251 and that forms a certain angle with the folding axisF, and the second area 252 may include an inclined surface that isinclined to be spaced farther away from the folding area 253 with anincreasing distance from the first area 251.

The certain angle may range from 50 degrees to 80 degrees.

The first recess 237 may include the first bottom surface 2371 facingtoward an edge of the folding area 235, a first sidewall 2372 extendingfrom the first bottom surface 2371 and facing toward the inner surfaceof the hinge housing 230, and a second sidewall 2373 opposite to thefirst sidewall 2372, at least part of the first portion of thecushioning member 240 may be disposed between the first sidewall 2372and the second sidewall 2373, and the first sidewall 2372 may be formedto form a virtual inclined surface extending from the inclined surfaceof the opposite surface 243.

An electronic device according to embodiments of the disclosure mayinclude a housing structure including a first housing 210, a secondhousing 220, and a hinge housing 430 disposed between the first housing210 and the second housing 220, in which the first housing 210 and thesecond housing 220 are configured to be folded toward each other about afolding axis F aligned with the hinge housing 430, a flexible display250 including a folding area 253 at least partially disposed in thehinge housing 430 and formed to be a flat surface or a curved surface, afirst area 251 that extends from the folding area 253 and that isdisposed in the first housing 210, and a second area 252 that extendsfrom the folding area 253 and that is disposed in the second housing220, and a shock-relieving structure that absorbs shock applied to theflexible display 250. The hinge housing 430 may include a sidewall, atleast a portion of which faces a direction of the folding axis F. Theshock-relieving structure may include a shock-absorbing member 440formed between the sidewall and a periphery of the flexible display 250.

The hinge housing 430 may be formed such that the sidewall is spacedapart from the periphery of the flexible display 250 by a first gap andthe cushioning member 440 is spaced apart from the periphery of theflexible display 250 by a second gap smaller than the first gap, and thecushioning member 440 may be at least partially located in an interiorspace 433 of the hinge housing 430.

The sidewall 431 may include a first sidewall 235-1 formed on one sidewith respect to the direction of the folding axis F and a secondsidewall 235-2 formed on an opposite side with respect to the directionof the folding axis F, the cushioning member 440 may include a firstcushioning member 240-1 formed between the first sidewall 235-1 and theperiphery of the flexible display 250 and a second cushioning member240-2 formed between the second sidewall 235-2 and the periphery of theflexible display 250, and the folding area 235 of the flexible display250 may be disposed between the first cushioning member 240 and thesecond cushioning member 240.

An electronic device according to embodiments of the disclosure mayinclude a flexible display 250 including a first area 251 formed to be aflat surface, a second area 252 formed to be a flat surface, and afolding area 253 formed between the first area 251 and the second area252 and formed to be a flat surface or a curved surface, a housingstructure that surrounds a periphery of the flexible display 250 andthat includes a frame structure 1505 spaced apart from the periphery bya first gap, and a shock-relieving structure including a shock-absorbingmember 1550 formed between the frame structure 1505 and the periphery ofthe flexible display 250 and spaced apart from the periphery by a secondgap smaller than the first gap.

The frame structure 1505 may include a first frame structure 1510 thatsurrounds at least a portion of the first area 251, a second framestructure 1520 that surrounds at least a portion of the second area 252,and a third frame structure 1530 that surrounds at least a portion ofthe folding area 253, and the shock-relieving structure may be formed inthe third frame structure 1530.

The housing structure may further include a plate structure 1506 onwhich the frame structure 1505 is formed and on which a rear surface ofthe flexible display 250 is seated, the shock-relieving structure mayinclude a first shock-relieving structure disposed adjacent to a firstedge of the flexible display and a second shock-relieving structuredisposed adjacent to a second edge of the flexible display that facesthe first edge of the flexible display in a direction of a folding axis,a rear surface of the first area 251 and a rear surface of the secondarea 252 may be coupled to the plate structure 1506 such that theflexible display 250 is movable relative to the plate structure 1506 ina certain range in the direction of the folding axis F, and the certainrange may be greater than or equal to the second gap.

The shock-relieving structure may be integrally formed with the framestructure 1505.

According to the embodiments of the disclosure, the gap between theflexible display and the housing structure may be reduced. Furthermore,foreign matter may be prevented from infiltrating into the housingstructure through the gap.

According to the embodiments of the disclosure, the flexible display maybe prevented from directly colliding with the rigid housing structure.Accordingly, a risk of deviation in an assembly process of the flexibledisplay may be reduced.

In addition, the disclosure may provide various effects that aredirectly or indirectly recognized.

The electronic device according to various embodiments may be one ofvarious types of electronic devices. The electronic devices may include,for example, a portable communication device (e.g., a smartphone), acomputer device, a portable multimedia device, a portable medicaldevice, a camera, a wearable device, or a home appliance. According toan embodiment of the disclosure, the electronic devices are not limitedto those described above.

It should be appreciated that various embodiments of the disclosure andthe terms used therein are not intended to limit the technologicalfeatures set forth herein to particular embodiments and include variouschanges, equivalents, or replacements for a corresponding embodiment.With regard to the description of the drawings, similar referencenumerals may be used to refer to similar or related elements. As usedherein, each of such phrases as “A or B,” “at least one of A and B,” “atleast one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and“at least one of A, B, or C,” may include any one of, or all possiblecombinations of the items enumerated together in a corresponding one ofthe phrases. As used herein, such terms as “1st” and “2nd,” or “first”and “second” may be used to simply distinguish a corresponding componentfrom another, and does not limit the components in other aspect (e.g.,importance or order). It is to be understood that if an element (e.g., afirst element) is referred to, with or without the term “operatively” or“communicatively”, as “coupled with,” “coupled to,” “connected with,” or“connected to” another element (e.g., a second element), it means thatthe element may be coupled with the other element directly (e.g.,wiredly), wirelessly, or via a third element.

As used herein, the term “module” may include a unit implemented inhardware, software, or firmware, and may interchangeably be used withother terms, for example, “logic,” “logic block,” “part,” or“circuitry”. A module may be a single integral component, or a minimumunit or part thereof, adapted to perform one or more functions. Forexample, according to an embodiment, the module may be implemented in aform of an application-specific integrated circuit (ASIC).

Various embodiments as set forth herein may be implemented as software(e.g., the program) including one or more instructions that are storedin a storage medium (e.g., internal memory or external memory) that isreadable by a machine (e.g., the electronic device). For example, aprocessor (e.g., the processor) of the machine (e.g., the electronicdevice) may invoke at least one of the one or more instructions storedin the storage medium, and execute it, with or without using one or moreother components under the control of the processor. This allows themachine to be operated to perform at least one function according to theat least one instruction invoked. The one or more instructions mayinclude a code generated by a compiler or a code executable by aninterpreter. The machine-readable storage medium may be provided in theform of a non-transitory storage medium. Wherein, the term“non-transitory” simply means that the storage medium is a tangibledevice, and does not include a signal (e.g., an electromagnetic wave),but this term does not differentiate between where data issemi-permanently stored in the storage medium and where the data istemporarily stored in the storage medium.

According to an embodiment of the disclosure, a method according tovarious embodiments of the disclosure may be included and provided in acomputer program product. The computer program product may be traded asa product between a seller and a buyer. The computer program product maybe distributed in the form of a machine-readable storage medium (e.g.,compact disc read only memory (CD-ROM)), or be distributed (e.g.,downloaded or uploaded) online via an application store (e.g.,PlayStore™), or between two user devices (e.g., smart phones) directly.If distributed online, at least part of the computer program product maybe temporarily generated or at least temporarily stored in themachine-readable storage medium, such as memory of the manufacturer'sserver, a server of the application store, or a relay server.

According to various embodiments of the disclosure, each component(e.g., a module or a program) of the above-described components mayinclude a single entity or multiple entities. According to variousembodiments, one or more of the above-described components may beomitted, or one or more other components may be added. Alternatively oradditionally, a plurality of components (e.g., modules or programs) maybe integrated into a single component. In such a case, according tovarious embodiments, the integrated component may still perform one ormore functions of each of the plurality of components in the same orsimilar manner as they are performed by a corresponding one of theplurality of components before the integration. According to variousembodiments, operations performed by the module, the program, or anothercomponent may be carried out sequentially, in parallel, repeatedly, orheuristically, or one or more of the operations may be executed in adifferent order or omitted, or one or more other operations may beadded.

While the disclosure has been shown and described with reference tovarious embodiments thereof, it will be understood by those skilled inthe art that various changes in form and details may be made thereinwithout departing from the spirit and scope of the disclosure as definedby the appended claims and their equivalents.

What is claimed is:
 1. An electronic device comprising: a hinge housingextending in a direction of a rotational axis; a first housing connectedto one side of the hinge housing in a direction perpendicular to therotational axis to rotate about the rotational axis relative to thehinge housing; a second housing connected to an opposite side of thehinge housing in a direction perpendicular to the rotational axis torotate about the rotational axis relative to the hinge housing; and aflexible display including: a bending area at least partially disposedin the hinge housing and formed to be a flat surface or a curvedsurface, a first area extending from the bending area in one directionperpendicular to the rotational axis, and a second area extending fromthe bending area in an opposite direction perpendicular to therotational axis, wherein the hinge housing includes: protruding portionsformed on opposite end portions of the hinge housing in the direction ofthe rotational axis and adjacent to a periphery of the flexible display,and cushioning members disposed between the protruding portions and theperiphery of the flexible display and spaced apart from the periphery ofthe flexible display by a certain gap.
 2. The electronic device of claim1, wherein each of the protruding portions includes a first protrudingportion located on one side with respect to the direction of therotational axis and a second protruding portion located on an oppositeside with respect to the direction of the rotational axis, and whereineach of the cushioning members includes a first cushioning member formedbetween the first protruding portion and an edge of the bending area anda second cushioning member formed between the second protruding portionand the edge of the bending area.
 3. The electronic device of claim 1,wherein each of the protruding portions is spaced apart from an edge ofthe bending area of the flexible display by a first gap, and whereineach of the cushioning members is spaced apart from the edge of thebending area of the flexible display by a second gap smaller than thefirst gap.
 4. The electronic device of claim 1, wherein each of theprotruding portions includes a first recess formed on a surface facingan edge of the bending area, and wherein each of the cushioning membersis at least partially received in the first recess.
 5. The electronicdevice of claim 1, wherein each of the cushioning members is formed tooverlap a portion of the bending area when the flexible display isviewed in the direction of the rotational axis.
 6. The electronic deviceof claim 1, wherein each of the cushioning members includes a firstportion facing an edge of the bending area of the flexible display and asecond portion extending from the first portion toward a space betweenthe flexible display and the hinge housing.
 7. The electronic device ofclaim 6, wherein the second portion is formed to be at least partiallyhidden by the flexible display when the hinge housing is viewed fromabove.
 8. The electronic device of claim 1, wherein the hinge housingincludes an inner surface facing a rear surface of the bending area ofthe flexible display and a sidewall extending from the inner surface andincluding an area facing the direction of the rotational axis, whereineach of the protruding portions protrudes from the sidewall toward afront surface of the flexible display, and wherein a portion of each ofthe cushioning members is coupled to the protruding portion, and theremaining portion of the cushioning member extends to the inner surface.9. The electronic device of claim 8, wherein the inner surface includesa second recess in which at least a portion of the cushioning member isreceived, and wherein the second recess is open in the direction of therotational axis.
 10. The electronic device of claim 1, wherein each ofthe cushioning members includes: a first portion including a bondingsurface attached to each of the protruding portions and an oppositesurface opposite to the bonding surface and facing the bending area, anda second portion including a seating surface that is seated on an innersurface of the hinge housing, and wherein the cushioning member iscoupled with the hinge housing such that the bonding surface is attachedto a first bottom surface of a first recess formed on the protrudingportion and the seating surface is located on a second bottom surface ofa second recess formed on the inner surface of the hinge housing. 11.The electronic device of claim 10, wherein the opposite surface includesa first area facing the direction of the rotational axis and a secondarea extending from the first area, the second area being configured toform a certain angle with the rotational axis, and wherein the secondarea includes an inclined surface that is inclined to be spaced fartheraway from the bending area with an increasing distance from the firstarea.
 12. The electronic device of claim 11, wherein the certain angleranges from 50 degrees to 80 degrees.
 13. The electronic device of claim11, wherein the first recess includes: the first bottom surface facingtoward an edge of the bending area, a first sidewall extending from thefirst bottom surface and facing toward the inner surface of the hingehousing, and a second sidewall opposite to the first sidewall, whereinat least part of the first portion of the cushioning member is disposedbetween the first sidewall and the second sidewall, and wherein thefirst sidewall is formed to form a virtual inclined surface extendingfrom the inclined surface of the opposite surface.
 14. An electronicdevice comprising: a housing structure including: a first housing, asecond housing, and a hinge housing disposed between the first housingand the second housing, wherein the first housing and the second housingare configured to be folded toward each other about a folding axisaligned with the hinge housing; a flexible display including: a bendingarea at least partially disposed in the hinge housing and formed to be aflat surface or a curved surface, a first area that extends from thebending area and that is disposed in the first housing, and a secondarea that extends from the bending area and that is disposed in thesecond housing; a sidewall formed at an edge of the hinge housing in adirection of the folding axis; and a cushioning member formed betweenthe sidewall and a periphery of the flexible display.
 15. The electronicdevice of claim 14, wherein the hinge housing is formed such that thesidewall is spaced apart from the periphery of the flexible display by afirst gap and the cushioning member is spaced apart from the peripheryof the flexible display by a second gap smaller than the first gap, andwherein the cushioning member is at least partially located in aninterior space of the hinge housing.
 16. The electronic device of claim14, wherein the sidewall includes a first sidewall formed on one sidewith respect to the direction of the folding axis and a second sidewallformed on an opposite side with respect to the direction of the foldingaxis, wherein the cushioning member includes a first cushioning memberformed between the first sidewall and the periphery of the flexibledisplay and a second cushioning member formed between the secondsidewall and the periphery of the flexible display, and wherein thebending area of the flexible display is disposed between the firstcushioning member and the second cushioning member.
 17. An electronicdevice comprising: a flexible display including: a first area formed tobe a flat surface, a second area formed to be a flat surface, and abending area formed between the first area and the second area andformed to be a flat surface or a curved surface; a housing structureconfigured to surround a periphery of the flexible display, the housingstructure including a frame structure spaced apart from the periphery bya first gap; and a shock-relieving structure including a shock-absorbingmember formed between the frame structure and the periphery of theflexible display and spaced apart from the periphery by a second gapsmaller than the first gap.
 18. The electronic device of claim 17,wherein the frame structure includes: a first frame structure configuredto surround at least a portion of the first area, a second framestructure configured to surround at least a portion of the second area,and a third frame structure configured to surround at least a portion ofthe bending area, and wherein the shock-relieving structure is formed inthe third frame structure.
 19. The electronic device of claim 17,wherein the housing structure further includes a support member on whichthe frame structure is formed and on which a rear surface of theflexible display is seated, wherein the shock-relieving structureincludes a first shock-relieving structure disposed adjacent to a firstedge of the flexible display and a second shock-relieving structuredisposed adjacent to a second edge of the flexible display configured toface the first edge of the flexible display in a direction of a foldingaxis, wherein a rear surface of the first area and a rear surface of thesecond area are coupled to the support member such that the flexibledisplay is movable relative to the support member in a certain range inthe direction of the folding axis, and wherein the certain range isgreater than or equal to the second gap.
 20. The electronic device ofclaim 17, wherein the shock-relieving structure is integrally formedwith the frame structure.
 21. The electronic device of claim 17, whereinthe shock-relieving structure is formed in a position corresponding tothe bending area.
 22. The electronic device of claim 17, wherein theshock-absorbing member protruding toward the flexible display.